323 Knickerbocker Avenue
Brooklyn, NY 11237BBL 3-03236-0005Map
Owner of record: 323 Knickerbocker Assoc, LLC
323 Knickerbocker Avenue is a mixed residential and retail building built in 1931 in Brooklyn, 11237. It has 6 residential units across 4 floors. The owner of record is 323 Knickerbocker Assoc, LLC. HPD has recorded 20 housing violations here, most recently on May 5, 2026. 2 of the 20 most recent violations are still open.
- HPD violations
- 20
- DOB violations
- 1
- ECB violations
- 7
- HPD complaints
- 19
What to know
Immediately hazardous issues among recent violations are still open.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 20
- ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
May 5, 2026
Closed — Violation dismissed - ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
Jun 10, 2025
Closed — Violation dismissed - ANon-hazardous
§ 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor missing at public hall, 1st story
Jan 3, 2024
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Nov 14, 2022
Closed — Violation dismissed - ANon-hazardous
Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story
Jun 15, 2022
Closed — Violation dismissed - BHazardous
Provide heavy duty locking device on door at building entrance
Jun 15, 2022
Closed — Violation dismissed - BHazardous
M/d law abate the nuisance consisting of electromagnetic locking device install on door at building entrance
Jun 15, 2022
Closed — Violation dismissed - ANon-hazardous
Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected
Jun 15, 2022
Closed — Violation dismissed - ANon-hazardous
Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story
Jun 15, 2022
Closed — Violation dismissed - ANon-hazardous
§ 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor at public hall, 1st story
Jun 15, 2022
Closed — Violation dismissed
Show 10 more ↓
- ANon-hazardous
Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box at public hall, 1st story
Jun 15, 2022
Closed — Violation dismissed - ANon-hazardous
Post a proper notice of carbon monoxide detecting device requirements, in a form approved by the commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in a private dwelling.
Jun 15, 2022
Closed — Violation dismissed - ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
Feb 25, 2022
Closed — Violation dismissed - ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
Apr 9, 2021
Closed — Violation dismissed - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Oct 9, 2015
Closed — Violation dismissed - CImmediately hazardous
Remove the illegal fastening unacceptable electromagnetic locking device installed at entrance door to building
Oct 3, 2011
Open — Not complied with - BHazardous
Replace or repair the self-closing doors that is missing or defective at entrance to building at public hall, 1st story
Oct 3, 2011
Closed — Violation closed - CImmediately hazardous
Post notice, in form approved by the department, stating the name and location of the person designated by the owner to have key to buildings heating system at 1st story public hall
Jun 26, 2008
Open — Not complied with - CImmediately hazardous
Provide ready access to buildings heating system at boiler room in bsmt
Jun 26, 2008
Closed — Violation closed - ANon-hazardous
File with this department a registration statement for building.
Nov 6, 1996
Closed — Violation dismissed
DOB building violations · 1
- Construction other optional
Borough commissioner has ordered all work stopped under permit# 321569101 on 8/30/2018 because the applicant of record has withdrawn from the project. unable to verify % of work completed remedy:stop all work immediately make site safe only. contact borough comm office at 718-802-3677 for information
Sep 6, 2018
Dob violation - dismissed
ECB violations · 7
- Class - 2
Failure to maintain the building and all parts thereof in a code-compliant manner. at the time of inspection, i observed missing and protruding mortar on the parapet wall masonry bricks. the condition poses a p
Oct 22, 2025 · Penalty $625
Resolve - Class - 2
Observed at above premises in cellar no electrical permit for boiler use. all prior applications not applicable to this scope of work, obtain all permits
Feb 21, 2024 · Penalty $1,250
Resolve - Hazardous
Failure to mantain defect noted (1)combustible debris at rear yrd garbage wood card board & various other debris. remedy:make all repairs make safe
May 26, 2004 · Penalty $800
Resolve - Hazardous
Work without a permit work noted (1)1st floor store removed stair to vacant apt above closed entry to egress from 2nd 4th floors (2)new store front with roll up gates at front & rear of premise remedy:remove il
May 26, 2004 · Penalty $800
Resolve - Hazardous
Work without a permit. work noted: 1st floor store closed entry egressto 2nd-4th floors. new store front with roll up gates at front & rear egress entry, exits and upper floor stairs removed & sealed to 2nd &
Oct 7, 2003 · Penalty $800
Resolve - Non-hazardous
Exit door: total obstruction. rear exit door has 4 metal slid bolts & roll up gate at rear & has total obstruction to rear exit. remedy: remove illegal slid bolts & keep exit door in open ready position.
Oct 7, 2003 · Penalty $350
Resolve - Non-hazardous
Expose gas line in public hall, piping and or equipment installed improperly. remedy;install piping and or equipment properly.
Jun 23, 1993
Resolve
Complaints
- Heat/hot water
Apartment only
Jan 1, 2024 · Apt 1A
Close - Heat/hot water
Apartment only
Nov 9, 2019 · Apt 1B
Close - Door/window
Door
Aug 31, 2015 · Apt BLDG
Close - Heat/hot water
Apartment only
Feb 22, 2015 · Apt 1A
Close - Heat/hot water
Apartment only
Feb 20, 2015 · Apt 1A
Close - Heat/hot water
Apartment only
Feb 16, 2015 · Apt 1A
Close - Heating
Heat related
Nov 19, 2011 · Apt 1A
Close - General
Locks
Oct 31, 2011 · Apt BLDG
Close - General
Doors
Oct 16, 2011 · Apt 2B
Close - General
Locks
Sep 29, 2011 · Apt 2B
Close
Show 9 more ↓
- General
Locks
Sep 26, 2011 · Apt 2B
Close - General
Doors
Sep 14, 2011 · Apt 2B
Close - Heating
Heat related
Mar 4, 2010 · Apt 18
Close - Plumbing
Water supply
Jan 4, 2009 · Apt 1A
Close - Heating
Heat related
Nov 20, 2008 · Apt 1A
Close - Heating
Heat-plant
Nov 20, 2008 · Apt 1A
Close - Heating
Heat related
Jun 24, 2008 · Apt 3A
Close - Heating
Heat related
Nov 1, 2007 · Apt 3E
Close - Heating
Heat related
Nov 1, 2007 · Apt BLDG
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Mixed residential and retail building (S5)
- Year built
- 1931
- Floors
- 4
- Residential units
- 6
- Building area
- 6,854 ft²
- Lot area
- 2,500 ft²
- Zoning
- R6
- Community board
- 304
- Council district
- 37
- Block / lot
- 3236 / 5
- Assessed value
- $558,450
- Landmark / historic district
- No
HPD registration #349984, last renewed Aug 21, 2025.
Questions about 323 Knickerbocker Avenue
Who owns 323 Knickerbocker Avenue?
The owner of record in NYC Department of City Planning PLUTO data is 323 Knickerbocker Assoc, LLC.
Does 323 Knickerbocker Avenue have violations?
Yes. NYC HPD has recorded 20 housing violations at this property.
Is 323 Knickerbocker Avenue rent stabilized?
No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.
When was 323 Knickerbocker Avenue built?
City records list 1931 as the year it was built.
How many apartments are in 323 Knickerbocker Avenue?
It has 6 residential units and 7 units in total.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.